Author(s) |
Yoo, Jaehong
Yi, Young-Joo
Wickramasuriya, Samiru S
Kim, Eunjoo
Shin, Taeg Kyun
Kim, Nu Ri
Heo, Jung Min
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Publication Date |
2017
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Abstract |
<p>A total of 336 1-day-old male Korean native ducks (KND) were used in a completely randomized design with seven dietary methionine levels (0.30–0.90% with 0.1% increment) to determine the methionine requirement of male Korean native ducks for 3 weeks after hatching. Each dietary treatment had six replicates with eight ducklings per pen. One duckling from each pen (<i>n</i> = 6) was sacrificed to weigh empty body and drumsticks at the end of the experiment. Final body weight and weight gain of 3 weeks old KND were increased with increasing dietary methionine level sup to 0.4%, and then decreased (<i>P</i> < 0.05) with a further increasing dietary methionine level. In contrast, feed conversion ratio of the KND decreased up to 0.4% and increased (<i>P</i> < 0.05) with the increasing dietary methionine level. Both empty body weight and proportions of empty body weight were linearly increased (<i>P</i> < 0.05) while the dietary methionine level elevated up to 0.4%. Estimated dietary methionine requirement for maximum body weights, daily gain and minimum feed conversion ratio were 0.36, 0.39 and 0.40%, respectively, when it was fitted into linear- and quadratic-plateau models.</p>
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Citation |
Animal Science Journal, 88(10), p. 1595-1600
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ISSN |
1740-0929
2220-9549
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Link | |
Publisher |
John Wiley & Sons, Inc
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Title |
Evaluation of dietary methionine requirement of male Korean native ducks for 3 weeks post-hatching
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Type of document |
Journal Article
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Entity Type |
Publication
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